联立二元一次方程的解的数目 by Patrick Chung

GeoGebra 命令及参数

1. Sequence(Segment[(x(T_1) + (2 * k), y(T_1)), (x(T_1) + (2 * k), y(T_1) + 2)], k, 0, 4) → t_1
2. Sequence(Segment[(x(T_1), y(T_1) + k), (x(T_1) + 8, y(T_1) + k)], k, 0, 2) → t_2
3. Sequence(Segment[(x(T_2) + (2 * k), y(T_2)), (x(T_2) + (2 * k), y(T_2) + 2)], k, 0, 4) → t_3
4. Sequence(Segment[(x(T_2), y(T_2) + k), (x(T_2) + 8, y(T_2) + k)], k, 0, 2) → t_4
5. Textfield(f) → InputBox1
6. Textfield(g) → InputBox2
7. Line(A_1, A_2) → f_2
8. Line(A_4, A_5) → g_2
9. Line(A_2, A_3) → f_3
10. Line(A_5, A_6) → g_3
11. Corner(2, 1) → C
12. Corner(2, 1) → Z